Heap-based Buffer Overflow
CWE-122
The product writes past the end of a buffer that was allocated on the heap.
We track 1,418 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.3. 21 have been exploited in real attacks.
How this weakness is prevented
- Pre-design: Use a language or compiler that performs automatic bounds checking.
- Architecture and Design: Use an abstraction library to abstract away risky APIs. Not a complete solution.
- Operation Build and Compilation: Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Implementation: Implement and perform bounds checking on input.
- Implementation: Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Latest Heap-based Buffer Overflow vulnerabilities
- 7.8 High severity
Revit: Out-of-bounds Write
A maliciously crafted SKP file, when linked or imported into Autodesk Revit, can be used to cause a Heap-based Overflow. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the cu
- 7.5 High severity
SMA100: Heap-based Buffer Overflow
Heap-based buffer overflow vulnerability in the SonicWall SMA100 SSLVPN due to the use of strcpy. This allows remote authenticated attackers to cause Heap-based buffer overflow and potentially lead to code execution.
- 7.8 High severity
Monitouch V-SFT: Out-of-bounds Write
Fuji Electric Monitouch V-SFT X1 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Fuji Electric Monitouch V-SFT. User interaction is r
- 8.2 High severity
PHP: Out-of-bounds Write
In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, due to an error in convert.quoted-printable-decode filter certain data can lead to buffer overread by one byte, which can in certain circumstances lead to crashes or disclose conten
- 7.8 High severity
NEF Codec: Out-of-bounds Write
Nikon NEF Codec Thumbnail Provider NRW File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Nikon NEF Codec. User interaction is required
- 7.8 High severity
SketchUp Viewer: Out-of-bounds Write
Trimble SketchUp Viewer SKP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Trimble SketchUp Viewer. User interaction is required to
- 7.8 High severity
Power PDF: Out-of-bounds Write
Tungsten Automation Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is
- 7.8 High severity
Power PDF: Out-of-bounds Write
Tungsten Automation Power PDF PSD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is
- 7.8 High severity
Power PDF: Out-of-bounds Write
Tungsten Automation Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is
- 7.8 High severity
Power PDF: Out-of-bounds Write
Tungsten Automation Power PDF PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tungsten Automation Power PDF. User interaction is
- 7.8 High severity
KeyShot: Out-of-bounds Write
Luxion KeyShot ABC File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. User interaction is required to exploit this vulne
- 7.8 High severity
KeyShot: Out-of-bounds Write
Luxion KeyShot 3DS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Luxion KeyShot. User interaction is required to exploit this vulne
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView RLE File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView JPM File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView ECW File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView ECW File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView XCF Plugin XCF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vuln
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView SVG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.8 High severity
IrfanView: Out-of-bounds Write
IrfanView PSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 8.8 High severity
Cam v3: Out-of-bounds Write
Wyze Cam v3 Realtek Wi-Fi Driver Heap-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Wyze Cam v3 IP cameras. Authentication is not required
- 7.8 High severity
IrfanView: Heap-based Buffer Overflow
IrfanView PSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of IrfanView. User interaction is required to exploit this vulnerability i
- 7.2 High severity
QTS: Buffer Copy without Checking Size of Input
A buffer copy without checking size of input vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow remote attackers who have gained administrator access to execute code. We have already fi
- 7.8 High severity
eDrawings: Heap-based Buffer Overflow
Heap-based Buffer Overflow and Uninitialized Variable vulnerabilities exist in the X_B and SAT file reading procedure in eDrawings from Release SOLIDWORKS 2024 through Release SOLIDWORKS 2025. These vulnerabilities could allow an attacker to execute arbitrary
- 7.8 High severity
Red Hat Enterprise Linux 6: Heap-based Buffer Overflow
A heap buffer overflow was found in the virtio-snd device in QEMU. When reading input audio in the virtio-snd input callback, virtio_snd_pcm_in_cb, the function did not check whether the iov can fit the data buffer. This issue can trigger an out-of-bounds writ
- 7.8 High severity
InDesign Desktop: Out-of-bounds Write
InDesign Desktop versions ID18.5.3, ID19.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a v
- 7.8 High severity
InDesign Desktop: Out-of-bounds Write
InDesign Desktop versions ID18.5.2, ID19.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a v
- 7.8 High severity
InDesign Desktop: Out-of-bounds Write
InDesign Desktop versions ID18.5.2, ID19.5 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a v
- 7.8 High severity
Substance3D - Painter: Out-of-bounds Write
Substance3D - Painter versions 10.1.0 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim
- 7.8 High severity
Substance3D - Painter: Out-of-bounds Write
Substance3D - Painter versions 10.1.0 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim
- 7.8 High severity
Substance3D - Painter: Out-of-bounds Write
Substance3D - Painter versions 10.1.0 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim
- 7.8 High severity
Illustrator: Out-of-bounds Write
Illustrator versions 28.7.1 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open
- 7.3 High severity
FortiAnalyzer: Out-of-bounds Write
A heap-based buffer overflow in Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14, FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.5, 7.0.0 through 7.0.12, 6.4.0 through 6.4.14 allow
- 9.8 Critical severity
mosquitto: Out-of-bounds Write
In Eclipse Mosquitto, from version 1.3.2 through 2.0.18, if a malicious broker sends a crafted SUBACK packet with no reason codes, a client using libmosquitto may make out of bounds memory access when acting in its on_subscribe callback. This affects the mosqu
- 7.8 High severity
Red Hat Enterprise Linux 10: Heap-based Buffer Overflow
A flaw was found in the X.org server. Due to improperly tracked allocation size in _XkbSetCompatMap, a local attacker may be able to trigger a buffer overflow condition via a specially crafted payload, leading to denial of service or local privilege escalation
- 7.8 High severity
AutoCAD: Out-of-bounds Write
A maliciously crafted MODEL file when parsed in libodxdll.dll through Autodesk AutoCAD can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in the con
- 7.8 High severity
AutoCAD: Out-of-bounds Write
A maliciously crafted 3DM file when parsed in AcTranslators.exe through Autodesk AutoCAD can force a Heap-Based Buffer Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code i
- 7.8 High severity
AutoCAD: Out-of-bounds Write
A maliciously crafted SLDPRT file when parsed in odxsw_dll.dll through Autodesk AutoCAD can force a Heap Based Buffer Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, write sensitive data, or execute arbitrary code in
- 7.8 High severity
CNCSoft-G2: Out-of-bounds Write
Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can manipulate users to visit a malicious page or file to leverage this vulnerability to execute code
- 7.8 High severity
Substance3D - Stager: Out-of-bounds Write
Substance3D - Stager versions 3.0.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim m
- 7.8 High severity
Substance3D - Stager: Out-of-bounds Write
Substance3D - Stager versions 3.0.3 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim m